MATI 07/2563 May 14, 2020 Subject Reporting First Quarter Consolidated Financial Statement which ended at March 31, 2020 To Director and Manager The Stock Exchange of Thailand For three-month period

No. KCM63/005 May 15, 2020 Subject Management Discussion and Analysis Quarter 1st Ending March 31, 2020 Attention President The Stock Exchange of Thailand K.C. Metalsheet Public Company Limited (“the

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- Translation - PorBor. 036 / 2019 October 18, 2019 Subject: Clarification of

(Translation) (Translation) IR 014/19 November 12, 2019 President and Director The Stock Exchange of Thailand Subject : To explain the reasons on the company’s net profit (net loss) more than 20

Our Ref: APURE 033/2020 13 November 2020 Subject Clarification on 3rd Quarter’s Operating Performance (3/2020) Attn. To President The Stock Exchange of Thailand The company clarifies causes and

Our Ref: APURE 022/2021 13 August 2021 Subject Clarification on Second Quarter’s Operating Performance (2/2021) Attn. To President The Stock Exchange of Thailand The company clarifies causes and

Our Ref: APURE 022/2022 15 August 2022 Subject Clarification on Second Quarter’s Operating Performance (2/2022) Attn. To President The Stock Exchange of Thailand The company clarifies causes and

Our Ref: APURE 019/2023 12 May 2023 Subject Clarification on First Quarter’s Operating Performance (1/2023) Attn. To The Director and President of the Stock Exchange of Thailand The company clarifies